Risks

Bleeding. This most common complication often can be detected and corrected during the procedure.

Puncture (perforation). There is a slight risk of a puncture through the wall of the digestive tract, depending on the size and location of the lesion that's removed.

Narrowing of the esophagus. Removing a lesion that encircles the esophagus carries some risk of scarring that narrows the esophagus, a condition that may lead to difficulty swallowing and require further treatment.

Call your doctor or get emergency care if you develop any of the following signs or symptoms after undergoing endoscopic mucosal resection:

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